NSN 5305-01-158-2044

Part Details | CLOSE TOLERANCE SCREW

5305-01-158-2044 A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Alternate Parts: MS23369B1028, MS23369B-1028, 5305-01-158-2044, 01-158-2044, 5305011582044, 011582044

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53JUL 19, 198301-158-204429294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

CROWNED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-01-158-2044
Part Number Cage Code Manufacturer
MS23369B-102896906MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS
Technical Data | NSN 5305-01-158-2044
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.625 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.596 INCHES MINIMUM AND 0.647 INCHES MAXIMUM
FASTENER LENGTH2.667 INCHES MINIMUM AND 2.687 INCHES MAXIMUM
MINIMUM TENSILE STRENGTH63000 POUNDS PER SQUARE INCH
HEAD STYLE CROWNED HEXAGON
HEAD HEIGHT0.313 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
WIDTH BETWEEN FLATS0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM
INTERNAL DRIVE STYLE4 CROSS RECESS TYPE 1
GRIP LENGTH1.750 INCHES MINIMUM AND 1.766 INCHES MAXIMUM
GRIP DIAMETER0.6236 INCHES MINIMUM AND 0.6241 INCHES MAXIMUM